问题描述:
英语翻译
Theshapeofthequartz(石英)grainsisroundedtosemi-rounded,indicatinganintensivetransportbeforetheirdeposition(沉积)inthebasin(煤层中).
问题描述:
英语翻译
Theshapeofthequartz(石英)grainsisroundedtosemi-rounded,indicatinganintensivetransportbeforetheirdeposition(沉积)inthebasin(煤层中).
石英颗粒的外形从圆形到半圆形的转变,表明了在它们沉积到煤层中之前经过了强烈的搬运作用.